Shaoxuan Yang, doctoral student, is the first author of the paper. Prof. Feng Wang, A. Prof. Zhengping Zhang and Prof. Liming Dai, are the corresponding authors. Beijing University of Chemical Technology is the first research institution. This work was financially supported by the National Natural Science Foundation of China, the National Key R&D Program of China, the Start-Up Fund for Talent Introduction of Beijing University of Chemical Technology, the Fund of High-Performance Carbon-Based Electrodes for Energy Storage and the Fundamental Research Funds for the Central Universities.